April 10, 2017
By Eoghan MacGuire
...Coral bleaching occurs (click here) when abnormal environmental conditions — such as heightened sea temperatures — push corals to expel tiny photosynthetic algae causing them to turn white.
The damage was recorded by the Australian Research Council's Centre of Excellence for Coral Reef Studies, which carried out separate studies over the past two years.
Its 2016 survey found the top third of the reef had experienced the most intense bleaching. But research completed last week recorded more damage along the 1,400 mile long reef's middle third....